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Alloy Steel P91 Pipes & Tubes: Properties, Applications, and Key Advantages | Sandvik

At Sandvik, we specialize in delivering high-performance piping solutions for demanding industrial needs. One of our most reliable products is the Alloy Steel P91 Pipes & Tubes, renowned for its strength, heat resistance, and long service life. This alloy steel grade is a staple in power generation and petrochemical industries, offering unmatched performance in high-temperature and high-pressure environments.

So, what exactly are Alloy Steel P91 Pipes & Tubes? These are ferritic-martensitic pipes and tubes made from a chromium-molybdenum alloy, specifically formulated to handle extreme stress. With a typical composition of 9% chromium and 1% molybdenum, P91 offers superior creep strength, excellent oxidation resistance, and enhanced weldability. These properties make it a go-to material for critical operations that require both durability and thermal stability.

Choosing Sandvik as your Alloy Steel P91 Pipes & Tubes Manufacturers ensures you get products that are thoroughly tested and certified. The key advantage of P91 pipes and tubes lies in their long service life under aggressive conditions. They resist corrosion, retain structural integrity under thermal cycling, and reduce maintenance needs over time. Additionally, the cost efficiency of Alloy Steel P91, when compared to other high-end materials, makes it ideal for bulk industrial applications.

As trusted Alloy Steel P91 Pipes & Tubes Suppliers, we cater to a wide range of sectors. These include power plants, chemical processing units, oil refineries, and boiler manufacturing industries. In power generation, P91 pipes are used for superheaters, reheaters, and steam lines. The petrochemical industry relies on them for furnace applications and high-pressure piping systems. Their resistance to thermal fatigue and creep makes them indispensable in these high-stakes environments.

When sourcing from leading Alloy Steel P91 Pipes & Tubes Stockists like Sandvik, you gain access to multiple types of P91 pipes and tubes. These include: Seamless Pipes: Ideal for high-pressure environments; no welded joints, ensuring strength and integrity. Welded Pipes: Cost-effective, suitable for lower pressure conditions where precise dimensions are required. ERW Tubes (Electric Resistance Welded): Perfect for structural use and medium fluid transmission. Fabricated Tubes: Custom-built to meet specific dimensions and complex requirements.

Sandvik also serves global markets as Alloy Steel P91 Pipes & Tubes Exporters, meeting international standards like ASTM A335 P91 and ASME SA335 P91. Our products undergo rigorous quality checks, including ultrasonic testing, hydro testing, and PMI testing, ensuring every order meets the highest quality benchmarks.

At Sandvik, we don’t just supply pipes—we deliver reliability. Whether you're upgrading a boiler or building a high-efficiency plant, our Alloy Steel P91 Pipes & Tubes are the performance-driven choice for professionals worldwide.

Specification of Alloy Steel P91 Pipes & Tubes

Specification : ASTM A335 / ASME SA335
Dimensions : ASTM, ASME and API
Outside Diameter : 6-2500mm; WT: 1-200mm
Wall thickness : 0.3mm – 50 mm
Size : 1/8"NB TO 30"NB IN
Type : Seamless / ERW / Welded / Fabricated Pipes
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
Schedules : SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules
Inspection, Test Reports : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing : Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials : Sizes and Specifications other than above can be manufactured on request

Equivalent Grades of Alloy Steel P91 Pipes & Tubes

STANDARD Werkstoff /DIN UNS EN
A335 Grade P91 1.7335 K91597 13CrMo4-5

Chemical Composition of Alloy Steel P91 Pipes & Tubes

Grade C≤ Mn P≤ S≤ Si≤ Cr Mo
P91 0.05~0.15 0.30~0.61 0.025 0.025 0.50~1.00 1.00~1.50 0.44~0.65

Mechanical Properties of Alloy Steel P91 Pipes & Tubes

Grade Tensile Strength, MPa Yield Strength, MPa Elongation, %
P91 415 min 220 min 30 min